The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Jul. 11, 1994
Applicant:
Jesse Clopton James, Huntsville, AL (US);
Inventor:
Jesse Clopton James, Huntsville, AL (US);
Assignee:
McDonnell Douglas Corporation, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 17/00 (2006.01); H01Q 15/00 (2006.01); H01Q 15/14 (2006.01); F41H 3/00 (2006.01); F41H 3/02 (2006.01); G01S 13/90 (2006.01);
U.S. Cl.
CPC ...
H01Q 15/14 (2013.01); H01Q 17/002 (2013.01); G01S 13/90 (2013.01); F41H 3/00 (2013.01); F41H 3/02 (2013.01);
Abstract
A synthetic aperture radar's surveillance is defeated by electronic camouflage that employs a protective shield to cover an intended target. The shield intercepts and modifies the interrogating radar pulses by modulating incident radar pulses to produce radar echoes shifted in Doppler frequency, whereby the returned echoes give a false depiction of the target, even to smearing the radar display. New structures are presented that exhibit variable reflectivity and variable dielectric characteristics of particular use in the foregoing and other electronic systems.